Table 1.

Total weight gain, n values and oxidation rate constants of the alloys OHC1 and OHC5 after isothermal oxidation at 800 °C and 1200 °C.

Alloy and Temperature	n	kl (g·cm−2·s−1)	kp (g2·cm−4·s−1)	Weight Gain (mg/cm2)
OHC1-800 °C	0.89	3.9 × 10−9 > 10 h	5.47 × 10−13 (0–10 h)	1.42
OHC1-1200 °C	0.68	3.74 × 10−9 > 40 h	4.13 × 10−11 (0–40 h)	1.60
OHC5-800 °C	0.54	-	3.4 × 10−13 (0–1.3 h) 3.8 × 10−14 (1.3–24 h) 1.5 × 10−13 (>24 h)	0.22
OHC5-1200 °C	-	4.4 × 10−8 (0–4.5 h) 2.1 × 10−8 (17–21.5 h)	1.41 × 10−12 (>21.5 h)	0.85